Inkjet printer cartridge adapted for enhanced cleaning thereof and method of assembling the printer cartridge

An inkjet printer cartridge adapted for enhanced cleaning thereof, comprising:

• a. a cartridge body defining a chamber therein;
• b. a substrate coupled to said cartridge body and having a hole therethrough in communication with the chamber, said substrate defining a first surface thereon having a first surface roughness;
• c. an orifice plate coupled to said substrate and having an orifice therethrough aligned with the hole, said orifice plate having a first height;
• and
• d. a platform coupled to said substrate and surrounding said orifice plate, said platform defining a second surface thereon having a second surface roughness less than the first surface roughness for sealably engaging a cap.

A method of assembling an inkjet printer cartridge adapted for enhanced cleaning thereof, comprising:

• a. providing a cartridge body defining a chamber therein;
• b. coupling a substrate to the cartridge body, the substrate having a hole therethrough in communication with the chamber, the substrate defining a first surface thereon having a first surface roughness;
• c. coupling an orifice plate to the substrate, the orifice plate having a first height and an orifice therethrough aligned with the hole;
• and
• d. coupling a platform to the substrate, the platform surrounding the orifice plate, the platform defining a second surface thereon having a second surface roughness less than the first surface roughness for sealably engaging a cap.